Relates Rational

Classes
class	CGAL::Rational_traits< NT >
	The class Rational_traits can be used to determine the type of the numerator and denominator of a rational number type as Quotient, Gmpq, mpq_class or leda_rational. More...

Functions
template<typename Rational>
Rational	CGAL::simplest_rational_in_interval (double d1, double d2)
	computes the rational number with the smallest denominator in the interval [d1,d2].
template<typename Rational>
Rational	CGAL::to_rational (double d)
	computes the rational number that equals d.

Function Documentation

simplest_rational_in_interval()

template<typename Rational>

Rational CGAL::simplest_rational_in_interval	(	double	d1,
		double	d2 )

#include <CGAL/simplest_rational_in_interval.h>

computes the rational number with the smallest denominator in the interval [d1,d2].

Computes the simplest rational number in an interval of two double values.

Implementation

See Knuth, "Seminumerical algorithms", page 654, answer to exercise 4.53-39.

See also

CGAL::to_rational()

to_rational()

template<typename Rational>

Rational CGAL::to_rational

(

double

d

)

#include <CGAL/to_rational.h>

computes the rational number that equals d.

Computes the rational number representing a given double precision floating point number.

See also

CGAL::simplest_rational_in_interval()